package com.bawei.auth.service;

import com.bawei.auth.utils.MsgUtil;
import com.bawei.common.core.constant.Constants;
import com.bawei.common.core.constant.SecurityConstants;
import com.bawei.common.core.constant.UserConstants;
import com.bawei.common.core.domain.R;
import com.bawei.common.core.enums.UserStatus;
import com.bawei.common.core.exception.ServiceException;
import com.bawei.common.core.utils.StringUtils;
import com.bawei.common.security.utils.SecurityUtils;
import com.bawei.system.domain.SysUser;
import com.bawei.system.domain.model.LoginUser;
import com.bawei.system.remote.api.RemoteUserService;
import lombok.extern.log4j.Log4j2;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Component;

import java.util.Random;
import java.util.concurrent.TimeUnit;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 登录校验方法
 *
 * @author bawei
 */
@Component
@Log4j2
public class SysLoginService
{
    @Autowired
    private RemoteUserService remoteUserService;

    @Autowired
    private SysPasswordService passwordService;

    @Autowired
    private SysRecordLogService recordLogService;

    @Autowired
    private StringRedisTemplate redisTemplate;

    @Autowired
    private MsgUtil msgUtil;


    /**
     * 登录
     */
    public LoginUser login(String username, String password)
    {
        // 用户名或密码为空 错误
        if (StringUtils.isAnyBlank(username, password))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户/密码必须填写");
            throw new ServiceException("用户/密码必须填写");
        }
        // 密码如果不在指定范围内 错误
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH)
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户密码不在指定范围");
            throw new ServiceException("用户密码不在指定范围");
        }
        // 用户名不在指定范围内 错误
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH)
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户名不在指定范围");
            throw new ServiceException("用户名不在指定范围");
        }
        // 查询用户信息
        R<LoginUser> userResult = remoteUserService.getUserInfo(username, SecurityConstants.INNER);

        if (StringUtils.isNull(userResult) || StringUtils.isNull(userResult.getData()))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "登录用户不存在");
            throw new ServiceException("登录用户：" + username + " 不存在");
        }

        if (R.FAIL == userResult.getCode())
        {
            throw new ServiceException(userResult.getMsg());
        }

        LoginUser userInfo = userResult.getData();
        SysUser user = userResult.getData().getSysUser();
        if (UserStatus.DELETED.getCode().equals(user.getDelFlag()))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "对不起，您的账号已被删除");
            throw new ServiceException("对不起，您的账号：" + username + " 已被删除");
        }
        if (UserStatus.DISABLE.getCode().equals(user.getStatus()))
        {
            recordLogService.recordLogininfor(username, Constants.LOGIN_FAIL, "用户已停用，请联系管理员");
            throw new ServiceException("对不起，您的账号：" + username + " 已停用");
        }
        passwordService.validate(user, password);
        recordLogService.recordLogininfor(username, Constants.LOGIN_SUCCESS, "登录成功");
        redisTemplate.opsForValue().set(UserConstants.USERNAME,username);
        return userInfo;
    }

    public void logout(String loginName)
    {
        recordLogService.recordLogininfor(loginName, Constants.LOGOUT, "退出成功");
    }

    /**
     * 注册
     */
    public void register(String username, String password)
    {
        // 用户名或密码为空 错误
        if (StringUtils.isAnyBlank(username, password))
        {
            throw new ServiceException("用户/密码必须填写");
        }
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH)
        {
            throw new ServiceException("账户长度必须在2到20个字符之间");
        }
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH)
        {
            throw new ServiceException("密码长度必须在5到20个字符之间");
        }

        // 注册用户信息
        SysUser sysUser = new SysUser();
        sysUser.setUserName(username);
        sysUser.setNickName(username);
        sysUser.setPassword(SecurityUtils.encryptPassword(password));
        R<?> registerResult = remoteUserService.registerUserInfo(sysUser, SecurityConstants.INNER);

        if (R.FAIL == registerResult.getCode())
        {
            throw new ServiceException(registerResult.getMsg());
        }
        recordLogService.recordLogininfor(username, Constants.REGISTER, "注册成功");
    }

    public void getCode(String phonenumber) {
        String regex = "^1[3-9]\\d{9}$"; // 中国手机号的正则表达式
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(phonenumber);
        if (!matcher.matches()) {
            throw new ServiceException("手机号格式不正确");
        }
        //校验手机号在redis是否存在
        String redisCode = redisTemplate.opsForValue().get(phonenumber);
        if(redisCode!=null){
            throw new ServiceException("一分钟只能发送一次");
        }else{
            Random random = new Random();
            String sixDigitNumber = String.valueOf(random.nextInt(900000) + 100000);
            log.info("验证码是:"+sixDigitNumber);
            //工具类过期了，测试用
            redisTemplate.opsForValue().set(phonenumber,sixDigitNumber,1, TimeUnit.MINUTES);
//            //调用短信工具类，发送成功
//            String s = msgUtil.sendMsg(phonenumber, sixDigitNumber);
//            if (s.contains("成功")){
//                //将验证码存入redis（key为手机号，value为验证码），并设置过期时间为1分钟
//                redisTemplate.opsForValue().set(phonenumber,sixDigitNumber,1, TimeUnit.MINUTES);
//            }else{
//                throw new ServiceException("验证码发送失败");
//            }
        }
    }

    //手机号+验证码->登录
    public LoginUser loginCode(String phonenumber, String code) {
        R<LoginUser> userResult = remoteUserService.phonenumberinfo(phonenumber, SecurityConstants.INNER);
        if (StringUtils.isNull(userResult) || StringUtils.isNull(userResult.getData()))
        {
            throw new ServiceException("登录用户：" + phonenumber + " 不存在");
        }

        LoginUser userInfo = userResult.getData();
        SysUser sysUser = userResult.getData().getSysUser();
        if(sysUser==null){
            throw new ServiceException("用户信息不存在");
        }

        //校验手机号是否为当前系统用户
        if (!sysUser.getPhonenumber().equals(phonenumber)) {
            throw new ServiceException("手机号不是系统用户");
        }

        //取出redis中存储的验证码
        String redisCode = redisTemplate.opsForValue().get(phonenumber);
        //校验手机号在redis是否存在，不存在则提示“验证码已过期，请重试”
        if(redisCode==null){
            throw new ServiceException("验证码已过期，请重试");
        }

        //判断验证码是否正确
        if(!redisCode.equals(code)){
            throw new ServiceException("验证码错误，请再次输入");
        }

        return userInfo;
    }



}
